CN105981463A - Resource allocation method and device in wireless access system supporting fdr transmission - Google Patents

Resource allocation method and device in wireless access system supporting fdr transmission Download PDF

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Publication number
CN105981463A
CN105981463A CN201580008633.XA CN201580008633A CN105981463A CN 105981463 A CN105981463 A CN 105981463A CN 201580008633 A CN201580008633 A CN 201580008633A CN 105981463 A CN105981463 A CN 105981463A
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frame
configuration
interference
subframe
information
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CN105981463B (en
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鲁广锡
郑载薰
韩镇百
李银终
金镇玟
崔国宪
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LG Electronics Inc
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LG Electronics Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. A resource allocation method of a base station in a wireless access system that supports a FDR, according to one embodiment of the present invention, comprises the steps of: transmitting a first frame setting for a configuration of an uplink subframe and a downlink subframe to a terminal which is set by a terminal-specific TDD; receiving, from the terminal, response information including traffic information of the terminal and/or frame setting information preferred by the terminal; and transmitting a second frame setting which has adjusted the ratios of the uplink subframe and the downlink subframe on the basis of the response information, wherein the second frame setting is capable of being set by shifting the first frame setting on the basis of the number of FDR interference terminals which simultaneously transmit an uplink.

Description

Support the resource allocation methods in the wireless access system of FDR transmission and device
Technical field
The present invention relates to support the wireless access system of full-duplex radio (FDR) transmission environment, more particularly, relate to A kind of method effectively sending and receiving signal when applying FDR and the equipment of support the method.
Background technology
Wireless communication system is widely used to provide various types of communication services of such as voice or data, services. Generally, wireless communication system is can to lead to multiple users by shared free system resources (bandwidth, transmission (Tx) power etc.) The multi-address system of letter.Various multi-address system can be used.Such as, CDMA (CDMA) system, frequency division multiple access (FDMA) system, time Divide multiple access (TDMA) system, OFDM (OFDMA) system, single-carrier frequency division multiple access (SC-FDMA) system, multicarrier frequency Divide multiple access (MC-FDMA) system etc..
Summary of the invention
Technical problem
It is an object of the invention to provide a kind of support FDR transmission wireless access system in effectively send and receive The resource allocation methods of data.
Another object of the present invention is to provide a kind of equipment supporting said method.
The purpose that is described in detail above can be not limited to, for those skilled in the art by the technical purpose that the present invention realizes For other technical purpose not described here will understand with becoming more apparent upon from described in detail below.
Technical scheme
According to an aspect of of the present present invention designed for solving the problems referred to above, a kind of at support full-duplex radio (FDR) wireless access system transmitted is comprised the following steps by the method for base station (BS) Resources allocation: at subscriber equipment (UE) under specific time division multiplex (TDD) pattern, the UE of configuration sends the configuration about uplink sub-frames and downlink subframe First frame configuration；The frame configuration letter of business information and the instruction described UE preferred frame configuration including described UE is received from described UE The response message of at least one in breath；And based on described response message send regulate described uplink sub-frames with described under Second frame configuration of the ratio of uplink subframe, wherein, by disturbing the quantity of UE based on the FDR performing ul transmissions simultaneously Make described first frame configuration displacement to set described second frame configuration.
The method can comprise the further steps of: and sends the described interference UE of interference between measurement apparatus according to FDR transmission Identification information.
The method can comprise the further steps of: and sends about the described identification information that can receive described interference UE to described UE The information of subframe.
The described identification information of described interference UE can use code sequence to generate.
Send if described UE and described FDR interference UE performs data simultaneously and receive, then can up according to described UE The first timing that the downlink subframe of link subframe and described FDR interference UE is configured simultaneously is at the UL subframe of described UE Frame sends the described identification information of described interference UE.
Described second frame configuration is it is contemplated that the quantity of the uplink frame switching point that is changed to descending chain circuit frame sets.
First frame configuration information can have the ratio of identical uplink sub-frames and downlink subframe.
According to a further aspect in the invention, a kind of in supporting the wireless access system that full-duplex radio (FDR) transmits The base station (BS) of Resources allocation includes radio frequency (RF) unit and processor, and wherein, described processor is configured to set to user Under standby (UE) specific time division multiplex (TDD) pattern, the UE of configuration sends about uplink sub-frames and the configuration of downlink subframe First frame configuration, from described UE receive include described UE business information and instruction described UE preferred frame configuration frame configuration The response message of at least one in information, and send the described uplink sub-frames of regulation with described based on described response message Second frame configuration of the ratio of downlink subframe, and wherein, by disturbing UE based on the FDR performing ul transmissions simultaneously Quantity make described first frame configuration displacement to set described second frame configuration.
Described processor is also configured to send the described interference UE of interference between measurement apparatus according to FDR transmission Identification information.
Described processor is also configured to send about the described identification information that can receive described interference UE to described UE The information of subframe.
The described identification information of described interference UE can use code sequence to generate.
Send if described UE and described FDR interference UE performs data simultaneously and receive, then can up according to described UE The first timing that the downlink subframe of link subframe and described FDR interference UE is configured simultaneously is at the UL subframe of described UE Frame sends the described identification information of described interference UE.
Described second frame configuration is it is contemplated that the quantity of the uplink frame switching point that is changed to descending chain circuit frame sets.
First frame configuration information can have the ratio of identical uplink sub-frames and downlink subframe.
The generally described above and described in detail below of the present invention is exemplary and explanat, and aims to provide wanting Ask the further illustrating of the present invention of protection.
Beneficial effect
According to the embodiment of the present invention, following effect can be obtained.
First, can effectively send in the wireless access system supporting FDR transmission and receive data.
Effect according to the present invention is not limited to the effect being described in detail above, to those skilled in the art, herein The further advantage not described will understand from the described in detail below of the present invention with becoming more apparent upon.That is, those skilled in the art are also The unexpected effect of the present invention can be derived from embodiments of the present invention.
Accompanying drawing explanation
Fig. 1 illustrates the structure of the radio frame in 3GPP LTE.
Fig. 2 illustrates the example frame configuration in the structure of the radio frame of Fig. 1.
Fig. 3 is the diagram of the structure illustrating downlink subframe.
Fig. 4 is the diagram of the structure illustrating uplink sub-frames.
Fig. 5 illustrates the configuration of the wireless communication system supporting MIMO.
Fig. 6 illustrates exemplary CRS and the DRS pattern of a Resource Block.
Fig. 7 is shown as the exemplary DM RS pattern of lte-a system definition.
Fig. 8 is shown as the exemplary CSI-RS pattern of lte-a system definition.
Fig. 9 is the diagram illustrating exemplary zero power (ZP) the CSI-RS pattern defined in lte-a system.
Figure 10 illustrates the example system supporting FDR transmission.
Figure 11 illustrates and disturbs between exemplary means.
Figure 12 illustrates the example frame configuration of the reciprocity UE of the configuration #1 for Fig. 2.
Figure 13 illustrates ratio is 1:1 two exemplary configuration of D subframe and U subframe.
Figure 14 illustrates the example frame configuration considering minimal number of switching point.
Figure 15 is shown through considering the example that the distribution of U subframe and minimal number of switching point make subframe shift and obtain Property frame configuration.
Figure 16 is shown without the example frame configuration in the case of switching point.
Figure 17 illustrates exemplary 1 bit interference information.
Figure 18 is the flow chart illustrating the embodiments of the present invention under UE specific T DD pattern.
Figure 19 illustrates and uses when configuration #3 and #5 of Fig. 2 is individually allocated to two UE of Figure 14 configuration #5 to send to UE The PDCCH of 10 bits.
Figure 20 illustrates BS and UE being applicable to embodiments of the present invention.
Detailed description of the invention
By constituent components and the property combination of the present invention being proposed implementation below according to predetermined format.Do not depositing In the case of additional comments, each constituent components or characteristic should be considered optional factor.If it is required, each composition group Part or characteristic can not be with other assembly or property combination.It addition, some constituent components and/or characteristic can be combined to realize this Bright embodiment.The order of operation disclosed in embodiments of the present invention can change into another order.If it is required, appoint Some assemblies or the characteristic of what embodiment also are included within other embodiment, or can be by that of other embodiment A little assemblies or characteristic replace.
Based on the open embodiments of the present invention of the data communications context between base station (BS) and terminal.In this situation Under, BS is used as BS can be via the terminal node of its network with terminal direct communication.If it is required, the present invention will be carried out by BS Specific operation also can be carried out by the upper layer node of BS.
In other words, it will be apparent to the person skilled in the art that make BS can with by including that BS is many The various operations of the terminal communication in the network of individual network node composition will be carried out by other network node beyond BS or BS. If it is required, term " BS " can be replaced by fixed station, node B, enode b (eNB or eNode B) or access point (AP). Term " repeater " can be replaced by via node (RN) or relay station (RS).If it is required, term " terminal " also can be set by user Standby (UE), movement station (MS), mobile subscriber station (MSS) or subscriber station (SS) replace.
It should be noted that the concrete term disclosed in the present invention be to describe and be more fully understood that the present invention for convenience and Proposing, in the technical scope or spirit of the present invention, the use of these concrete terms can change into another form.
In some cases, well known structures and device are omitted to avoid fuzzy idea of the invention, these structures and dress The critical function put illustrates in block diagram form.Running through accompanying drawing will use identical label to refer to same or analogous parts.
Embodiments of the present invention are by for normative document support disclosed at least one wireless access system, described wireless Access system include Institute of Electrical and Electric Engineers (IEEE) 802 system, the 3rd generation partner program (3GPP) system, 3GPP Long Term Evolution (LTE) system and 3GPP2 system.Specifically, in embodiments of the present invention in order to clearly reveal Step or parts that the technology of the present invention is conceived and do not described can be supported by above-mentioned document.All terms used herein can Supported by least one in above-mentioned document.
The implementation below of the present invention can be applied to such as CDMA (CDMA), frequency division multiple access (FDMA), time-division The various wireless access technologys of multiple access (TDMA), OFDM (OFDMA), single-carrier frequency division multiple access (SC-FDMA) etc.. The available such as universal terrestrial radio of CDMA is electrically accessed wireless (or radio) technology of (UTRA) or CDMA2000 and comes concrete real Existing.TDMA may utilize such as global system for mobile communications (GSM)/General Packet Radio Service (GPRS)/enhancing data rate Wireless (or radio) technology of GSM evolution (EDGE) implements.The available such as Electrical and Electronic engineer of OFDMA assists Meeting (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20 and evolution UTRA's (E-UTRA) is wireless (or radio) technology implements.UTRA is a part of Universal Mobile Telecommunications System (UMTS).3rd generation affiliate meter Draw the part that Long Term Evolution (3GPP LTE) is the evolution UMTS (E-UMTS) using E-UTRA.3GPP LTE is at downlink Middle employing OFDMA, uses SC-FDMA in the uplink.LTE-Advanced (LTE-A) is the evolution version of 3GPP LTE. WiMAX can be by IEEE 802.16e (WirelessMAN-OFDMA reference system) and senior IEEE 802.16m (WirelessMAN-OFDMA AS) illustrates.In order to clearly, below describe and concentrate on 3GPP LTE and lte-a system. But, the technical characteristic of the present invention is not limited to this.
Fig. 1 illustrates the structure of the radio frame of 3GPP LTE.
Frame structure type shown in Fig. 12.Frame structure type 2 is applicable to time division duplex (TDD) system.One radio frame There is Tf=307200 TsThe length of=10ms, and include that each there are 153600 TsThe two and half of the length of=5ms Frame.Each field includes each having 30720 Ts5 subframes of the length of=1ms.I-th subframe includes each having Tslot= 15360·TsTwo time slot 2i and 2i+1 of the length of=0.5ms.Ts is as Ts=1/ (15kHz × 2048)=3.2552 × 10-8The sampling time that (about 33ns) is given.
Frame structure type 2 includes the special subframe with three fields: down link pilot timeslot (DwPTS), protection week Phase (GP) and uplink pilot time slot (UpPTS).DwPTS search of initial zone, synchronization or channel at UE is estimated. UpPTS channel at eNB is estimated and Tong Bu with the ul transmissions of UE.GP is for eliminating by down link signal Interference between up-link and downlink that multidiameter causes.DwPTS, GP and UpPTS are included in the special son of table 1 In frame.
Fig. 2 illustrates the example frame configuration in the structure of the radio frame of Fig. 1.
In fig. 2, D represents the subframe for downlink transmission, and U represents the subframe for ul transmissions, and S represents Special subframe for guard time.
All UE in each community have a frame configuration in the configuration of Fig. 2 jointly.That is, frame configuration becomes with community Changing, the configuration of this frame is referred to alternatively as community particular configuration.
Fig. 3 is the diagram of the structure illustrating downlink subframe.Up to the three of the beginning of the first time slot of one subframe Individual OFDM symbol controls the control area of channel corresponding to being assigned.Residue OFDM symbol is corresponding to being assigned physical down link Share the data area of channel (PDSCH).BTU is a subframe.That is, across two time slots distribution PDCCH and PDSCH.The example of the downlink control channel used in 3GPP LTE system includes such as physical control format indicator Channel (PCFICH), physical downlink control channel (PDCCH), physical mixed automatic repeat request indicator channel (PHICH) etc..PCFICH be positioned at carrying about in subframe for controlling the subframe of the information of the quantity of the OFDM symbol of channel In first OFDM symbol.PHICH includes the HARQ ack/nack (ACK/NACK) as the response to ul transmissions Signal.The control information sent on PDCCH is referred to as down link control information (DCI).DCI includes up-link or descending Link scheduling information or the up-link transmission power control order for particular UE group.PDCCH can include about descending chain Road is shared the resource distribution of channel (DL-SCH) and is divided with the information of transformat, the resource of uplink shared channel (UL-SCH) Join the system information on information, the paging information of paging channel (PCH), DL-SCH, connect the most at random about send on PDSCH Enter the information of the resource distribution of the high-layer control message of response (RAR), for one group of each UE in particular UE group transmission merit Rate control command, transmission power control information, the information etc. of activation about ip voice (VoIP).Can send in control area Multiple PDCCH.UE can monitor this multiple PDCCH.PDCCH is in the polymerization of one or more adjacent control channel elements (CCE) Upper transmission.CCE is the logical allocation unit for providing PDCCH with the code rate of state based on radio channel.CCE bag Include one group of RE.Relevant between the code rate that the form of PDCCH and available bit number quantity based on CCE are provided to CCE Property determines.BS determines PDCCH form according to the DCI that will be sent to UE and cyclic redundancy check (CRC) (CRC) is attached to Control information.The owner according to PDCCH or purposes, covered CRC by radio network temporary identifier (RNTI) Code.If PDCCH is used for particular UE, then by the community-RNTI (C-RNTI) of UE, CRC can be carried out mask.If PDCCH For beep-page message, then by Paging Indicator identifier (P-RNTI), CRC can be carried out mask.If PDCCH is used for System information (more particularly, system information block (SIB)), then can pass through system information identifier and system information RNTI (SI- RNTI) CRC is carried out mask.In order to indicate the accidental access response to the random access lead code received from UE, can pass through Stochastic accessing-RNTI (RA-RNTI) carries out mask to CRC.
Fig. 4 is the diagram of the structure illustrating uplink sub-frames.Uplink sub-frames may be logically divided into control zone in a frequency domain Territory and data area.Physical uplink control channel (PUCCH) including uplink control information is assigned to control zone Territory.Physical uplink link shared channels (PUSCH) including user data is assigned to data area.In order to maintain single carrier Character, sends PUSCH and PUCCH during a UE difference.RB pair be assigned in subframe for the PUCCH of a UE.RB pair RB in two time slots, occupy different subcarriers.Therefore, the RB of PUCCH is distributed to " frequency hopping " on the slot boundary.
The modeling of multiple-input and multiple-output (MIMO) system
Mimo system utilizes multiple Tx antenna and multiple Rx antenna to increase data transmission/receiving efficiency.MIMO is not Depend on individual antenna path in the case of receiving whole message, the data slot received from multiple antennas is placed in whole disappearing Application in breath.
MIMO scheme is divided into space diversity and spatial reuse.Space diversity utilizes diversity gain to increase transmission reliability Or radius of society, is thus suitable for the data transmission of the quickly UE of movement.In spatial reuse, multiple Tx antennas send simultaneously Different data, therefore can send high-speed data in the case of not increasing system bandwidth.
Fig. 5 illustrates the configuration of the wireless communication system supporting MIMO.As shown in (a) of Fig. 5, and only in transmitter and reception Multiple antennas are used to compare in machine one, when locating will send respectively the quantity of (Tx) antenna at both transmitter and receiver N is increased to the quantity receiving (Rx) antennaTAnd NRTime, paper channel transmission capacity proportionally increases with antenna amount.Cause This, transfer rate and frequency efficiency significantly increase.Along with transmission capacity increases, transfer rate can increase at list in theory The product of attainable peak transfer rate Ro and rate increase ratio Ri in the case of individual antenna.
[formula 1]
Ri=min (NT, NR)
Such as, compared with single-antenna wireless communication system, there is the MIMO communication system of four Tx antennas and four Rx antennas System can realize four times of increases of transfer rate in theory.Owing to confirming mimo wireless communication system in the nineties in 20th century Theoretical capacity increases, so have studied many technology the most energetically to increase data rate in practical implementations.In these technology Some be reflected in and included the various wireless of the standard for 3G mobile communication, WLAN of future generation (WLAN) etc. In communication standard.
About the research tendency of MIMO up to now, many aspects of MIMO are carried out positive research, including The research of the information theory that calculating with the multi-antenna communication capacity in diversity channel environment and multiple access environments is relevant, measure MIMO Radio channel and the research of MIMO modeling, the research of space-time signal treatment technology, to increase transmission reliability and transfer rate Deng.
To be described in detail by mathematical modeling and there is NTIndividual Tx antenna and NRCommunication in the mimo system of individual Rx antenna.
About sending signal, N can be passed throughTIndividual Tx antenna sends up to NTBar information, is expressed as following vector.
[formula 2]
Each bar can be sent informationApply different transmit powers.Make the transmit power water of transmission information Divide equally not byRepresent.Then transmit power controlled transmission information vector can be given
[formula 3]
s ^ = [ s ^ 1 , s ^ 2 , ... , s ^ N T ] T = [ P 1 s 1 , P 2 s 2 , ... , P N T s N T ] T
Transmit power controlled transmission information vectorThe diagonal matrix P of available transmit power is expressed as follows.
[formula 4]
Can be by by controlled for transmit power information vectorIt is multiplied with weight matrix W and generates NTIndividual transmission signalWeight matrix W is for being suitably allocated to Tx antenna according to state of transmission channel etc. by transmission information.This NT Individual transmission signalBeing represented as vector x, it can be confirmed as
[formula 5]
Here, wijRepresenting the weight between j-th strip information and the i-th Tx antenna, W is pre-coding matrix.
Sent signal x can be treated differently according to two schemes (such as, space diversity and spatial reuse).In space In multiplexing, different signals is re-used and sends to receiver so that the element of information vector has different values.Divide in space Concentrate, repeatedly send identical signal by multiple channel paths so that the element of information vector has identical value.Space Multiplexing and space diversity can be combined and use.Such as, identical signal can be sent in space diversity by three Tx antennas, and remain Remaining signal can be sent to receiver in spatial reuse.
Given NRIndividual Rx antenna, the signal received at Rx antennaMay be expressed as following vector.
[formula 6]
y = [ y 1 , y 2 , ... , y N R ] T
When being modeled channel in mimo wireless communication system, they can come district according to the index of Tx and Rx antenna Point.Channel between jth Tx antenna and the i-th Rx antenna is by hijRepresent.It should be noted that at hijThe index of middle Rx antenna Before the index of Tx antenna.
(b) of Fig. 5 illustrates from NTIndividual Tx antenna is to the channel of the i-th Rx antenna.Channel can be shown collectively as vector sum square Battle array.With reference to (b) of Fig. 5, from NTIndividual Tx antenna can be expressed as to the channel of the i-th Rx antenna
[formula 7]
h i T = [ h i 1 , h i 2 , ... , h iN T ]
Therefore, from NTIndividual Tx antenna is to NRAll channels of individual Rx antenna can be expressed as following matrix.
[formula 8]
Actual channel, through above-mentioned channel matrix H, is then added with additive white Gaussian noise (AWGN).With NRIndividual Rx antenna The AWGN being added is given following vector.
[formula 9]
n = [ n 1 , n 2 , ... , n N R ] T
From above-mentioned mathematical modeling, received signal vector is given
[formula 10]
Represent that line number and the columns of the channel matrix H of channel status determine according to the quantity of Rx and Tx antenna.Specifically Saying, the line number in channel matrix H is equal to quantity N of Rx antennaR, columns in channel matrix H is equal to quantity N of Tx antennaT.Cause This, the size of channel matrix H is NR×NT。
The independent line number that rank of matrix is defined as in matrix and the smaller in independent columns.Therefore, rank of matrix is not Line number or columns more than matrix.Order rank (H) of channel matrix H meets following constraint.
[formula 11]
rank(H)≤min(NT, NR)
In MIMO transmission, term " order " represents the quantity in the path for sending signal independently, term " number of plies " table Show the quantity of the signal stream sent by each path.Generally, due to transmitter send for signal transmission order quantity that Many layers, so unless otherwise instructed, otherwise order has the implication identical with the number of plies.
Reference signal (RS)
In a wireless communication system, packet is sent over a radio channel.In view of the essence of radio channel, at transmission period Between packet may distortion.In order to be successfully received signal, receiver should utilize channel information to compensate received signal Distortion.Generally, so that receiver can obtain channel information, it is known that transmitter sends both transmitter and receiver Signal, and receiver distortion based on the signal received over a radio channel obtains the knowledge of channel information.This signal It is referred to as pilot signal or RS.
In the case of sending by the data of multiple antennas and receive, successful signal receive need Tx antenna with Rx days The knowledge of the channel status between line.Therefore, it should there is RS for each Tx antenna.
In mobile communication system, RS is roughly classified into two types according to its purpose serviced: obtain for channel information The RS taken and the RS demodulated for data.The RS of former type should be transmitted such that in broadband that UE can obtain descending chain Path channels information.UE even without the down link data received in specific sub-frame also should be able to receive these RS and survey Measure them.When eNB sends down link data, it sends latter type in the resource distribute to down link data RS.UE can perform channel estimation by receiving described RS, and therefore estimates to demodulate data based on channel.These RS should Data transmission region sends.
In tradition 3GPP LTE system (such as, meet the system of 3GPP LTE version 8), define for unicast services Two kinds of downlink RS: public RS (CRS) and special RS (DRS).CRS obtains for CSI and measures and (such as, is used for Switching).CRS is also referred to as the specific RS in community.DRS demodulates for data, is referred to as the specific RS of UE.Tradition 3GPP LTE system is only DRS is used for data demodulation, CRS is used for channel information acquisition and data two purposes of demodulation.
The specific CRS in community sends across broadband in each subframe.According to the quantity of the Tx antenna at eNB, eNB The CRS for up to four antenna ports can be sent.Such as, the eNB with two Tx antennas sends for antenna port 0 and sky The CRS of line cap 1.If eNB has four Tx antennas, then it send for corresponding four Tx antenna ports (antenna port 0 to Antenna port 3) CRS.
Fig. 6 is shown in eNB to be had in the system of four Tx antennas for RB (in the case of normal CP, including in the time 14 OFDM symbol × frequencies in 12 subcarriers) CRS and DRS pattern.In figure 6, be labeled as " R0 ", " R1 ", The RE of " R2 " and " R3 " represents the position of the CRS for antenna port 0 to antenna port 4 respectively.The RE being labeled as " D " represents The position of the DRS defined in LTE system.
As the evolution of LTE system, lte-a system can support up to eight Tx antennas.Therefore, also should support for many Reach the RS of eight Tx antennas.Owing to defining downlink RS only for up to four Tx antennas in LTE system, so working as When in lte-a system, eNB has five to eight downlink Tx antennas, it should additionally define for five to eight Tx antenna ports RS.The RS for channel measurement and both the RS for data demodulation should be considered for up to eight Tx antenna ports.
One of important consideration of design of lte-a system is backward compatibility.Backward compatibility is to ensure that tradition LTE terminal Even if the feature the most normally operated in lte-a system.If be added to for the RS of up to eight Tx antenna ports Send the T/F region of the CRS defined by LTE standard in each subframe across total frequency band, then RS expense becomes huge. Therefore, it should design new RS for up to eight antenna ports so that RS expense reduces.
Generally, the RS of two kinds of new types is introduced to lte-a system.One type be for channel measurement purpose service with For selecting transmission rank, modulation and the CSI-RS of encoding scheme (MCS), pre-coding matrix index (PMI) etc..Another type is to use Demodulation RS (DM RS) in the demodulation of the data sent by up to eight Tx antennas.
With tradition LTE system is used for measuring (such as, channel measurement and the measurement of switching) and data demodulate two purposes CRS compare, CSI-RS be designed primarily for channel estimate, but it can also be used for switching measurement.Due to only for Obtaining channel information and send CSI-RS, so different from the CRS in tradition LTE system, they can not be in each subframe Send.Therefore, CSI-RS can be configured to (such as, periodically) send, for reducing CSI-discontinuously along time shaft RS expense.
When sending data in downlink subframe, the UE also having data to transmit to scheduling specially sends DM RS.Cause This, can design specialized in the DM RS of particular UE so that they only (i.e., only exist in the resource area dispatched for this particular UE Carrying is in the T/F region of the data of this particular UE) send.
Fig. 7 is shown as the exemplary DM RS pattern of lte-a system definition.In the figure 7, at bearing downlink link data RB (in the case of normal CP, there is the RB of 12 subcarriers in 14 OFDM symbol × frequencies in the time) carries DM The position of the RE of RS is labeled.Can be for four antenna port (antenna port 7 to antenna end of additionally definition in lte-a system Mouth 10) send DM RS.DM RS for different antennae port can be by their different frequency resource (subcarrier) and/or difference Time resource (OFDM symbol) identify.This means that DM RS can be according to frequency division multiplexing (FDM) and/or time division multiplex (TDM) Carry out multiplexing.If be positioned in identical time-frequency resources for the DM RS of different antennae port, then they can be different by it Orthogonal code identify.That is, these DM RS can carry out multiplexing according to code division multiplexing (CDM).In the case shown in figure 7, for sky The DM RS of line cap 7 and antenna port 8 can be arranged on the RE of DM RS CDM group 1 by multiplexing based on orthogonal code.Class As, DM RS CDM can be arranged at by multiplexing based on orthogonal code for the DM RS of antenna port 9 and antenna port 10 On the RE of group 2.
Fig. 8 is shown as the exemplary CSI-RS pattern of lte-a system definition.In fig. 8, at bearing downlink link data RB (in the case of normal CP, there is the RB of 12 subcarriers in 14 OFDM symbol × frequencies in the time) carries The position of the RE of CSI-RS is labeled.One of CSI-RS pattern shown in (e) of (a) of Fig. 8 to Fig. 8 can be used for any descending chain Way frame.CSI-RS can be sent for eight antenna ports (antenna port 15 to antenna port 22) that lte-a system is supported. CSI-RS for different antennae port can be by their different frequency resource (subcarrier) and/or different time resources (OFDM symbol) identifies.This means that CSI-RS can carry out multiplexing according to FDM and/or TDM.It is positioned at identical T/F money The CSI-RS for different antennae port in source can be identified by its different orthogonal code.That is, these CSI-RS can be according to CDM Carry out multiplexing.In the case of shown in (a) of Fig. 8, the CSI-RS for antenna port 15 and antenna port 16 can be by based on just The multiplexing handing over code is arranged on the RE of CSI-RS CDM group 1.Can lead to for the CSI-RS of antenna port 17 and antenna port 18 Cross multiplexing based on orthogonal code to be arranged on the RE of CSI-RS CDM group 2.For antenna port 19 and antenna port 20 CSI-RS can be arranged on the RE of CSI-RS CDM group 3 by multiplexing based on orthogonal code.For antenna port 21 and antenna The CSI-RS of port 22 can be arranged on the RE of CSI-RS CDM group 4 by multiplexing based on orthogonal code.(a) with reference to Fig. 8 Described same principle be applicable to (a) of Fig. 8 to Fig. 8 (e) shown in CSI-RS pattern.
Fig. 9 is the diagram being shown in exemplary zero power (ZP) the CSI-RS pattern defined in lte-a system.ZP CSI- RS is typically used for two purposes.First, ZP CSI-RS is used for improving CSI-RS performance.That is, one network can make another network CSI-RS RE mourns in silence to improve the CSI-RS measurement performance of another network described, and is set to ZP by the RE that will mourn in silence CSI-RS informs the RE mourned in silence to its UE, so that UE can be appropriately carried out rate-matched.Secondly, ZP CSI-RS is used for doing Disturb measurement so that CoMP CQI calculates.That is, some networks can make ZP CRS-RS RE mourn in silence and UE can be by from ZP CSI- RS measures interference and calculates CoMP CQI.
The RS pattern of Fig. 6 to Fig. 9 is only exemplary, and the RS pattern of the various embodiments being applied to the present invention is not limited to this The most concrete RS pattern.In other words, even if when the RS pattern of the RS pattern that definition use are different from Fig. 6 to Fig. 9, it is possible to The various embodiments of the sample ground application present invention.
Full-duplex radio (FDR) transmits
Support transmission that the system of FDR refers to support to use same asset in transmitting device simultaneously and reception is System.Such as, eNB or UE supporting FDR transmission can perform transmission and without performing up-link/descending in frequency/time etc. Link duplex.
Figure 10 illustrates the example system supporting FDR transmission.
Two kinds of interference is there is with reference in Figure 10, FDR system.
The first is device internal interference, and it indicates the signal of the transmission antenna transmission via FDR device due to by FDR device Reception antenna receive and serve as interference.Generally, self-interference signal is to be received higher than the power of desired signal.Therefore, weight Want is by interference cancellation operation fully cancellation element internal interference.
The second is to disturb between device, and the uplink signal wherein sent by eNB or UE is owing to being connect by adjacent eNB or UE Receive and serve as interference.In legacy communications system, separate in frequency or in the time owing to realizing uplink/downlink transmission The half-duplex (such as, FDD or TDD) performed, so not disturbing between up-link and downlink.But, up Link and downlink are shared the FDR transmission environment of identical frequency/time resource and be may result between FDR device and neighboring devices Interference.
Although even still there is the interference between the neighbor cell in legacy communications system in FDR system, in the present invention This situation will not be contained.
Figure 11 illustrates and disturbs between exemplary means.
(IDI) is disturbed between generating means as it has been described above, use the most in the cell in the FDR transmission of same asset.
With reference to Figure 11, for UE 2, UE 1 uplink signal sent to eNB may act as interference.
Although in order to the description of IDI is convenient, illustrate only two UE in Figure 11, inventive feature is not limited to this quantity UE。
As it has been described above, FDR system refer to support to use identical time and/or the transmission of same frequency and reception simultaneously be System.I.e., such as, the up-link of UE1 sends and the down-link reception of UE2 can occur simultaneously.That is, the UE of FDR transmission is supported Both up-link and downlink should be able to be supported simultaneously.But, in the configuration used in legacy communications system, by Up-link or downlink transmission is performed a moment, so FDR cannot be supported in UE.
The tdd frame collocation method of the FDR according to the present invention
The invention provides a kind of support use the frame collocation method of the tdd communication system of FDR transmission and support to use The distinguishing signal method of sending and receiving of the tdd communication system of FDR transmission.
Hereinafter, although for the ease of describing, it will be assumed that a length of 10ms of a frame and one as in LTE standard The a length of 1ms of subframe, inventive feature is not limited to radio frame and the subframe of above-mentioned length of above-mentioned length.
As the method supporting FDR transmission, frame can be configured for each UE, so that the UE in community can perform simultaneously Line link and downlink transmission.
For example, it is assumed that in identical community, UE1 is assigned the uplink-downlink configuration 3 of Fig. 2, and UE2 is referred to Send uplink-downlink configuration 4.In this case, UE1 and UE2 can perform to send simultaneously and receive in subframe 4. That is, UE can use different frame configurations to perform to send and receive according to the UE in community the most simultaneously.
Configure frame time, frame can be configured such that minimum include downlink (D) subframe with support by eNB to little The synchronizing signal of the UE in district and the transmission of pertinent system information.
Further, since the GP considering timing advance should be disposed before the ul transmissions of the information of UE and data, So special (S) subframe can be disposed before up-link (U) subframe.
It is contemplated that asymmetric downlink/uplink business and expense use various types of frame to configure.Specifically Say, owing to not sending synchronizing signal and system information in each radio frame, there is no D subframe or U subframe so can use Radio frame.
Additionally, it may include at least one U subframe is to perform the HARQ for downlink.
As the example of sub-frame configuration, the community particular frame configuration of Fig. 2 can be used as the configuration of UE particular frame.
Such as, as the configuration #2 that the UE1 of Figure 11 uses the UE2 of configuration #0 and Figure 11 of Fig. 2 to use Figure 11, eNB's Full duplex (FD) operation can perform in subframe #3, #4, #8 and #9.
According to the present invention, it is contemplated that the symmetry of data service configures frame.
Such as, if UE uses the configuration #1 of Fig. 2 under FD pattern, the most preferably equity UE meets the frame configuration of Figure 12 So that the maximum transmitted of the business sending simultaneously and receiving.(owing to periodicity is 5ms, so only subframe #3, #4, #8 and #9 Can change).
Figure 12 illustrates the example frame configuration of the configuration #1 for Fig. 2, equity UE.
But, before including that the S subframe of GP should be present in subframe #4 and #9, so while supreme from downlink The switching point of line link and be difficult to be actually implemented the configuration of Figure 12.Therefore, when the D subframe in the configuration #1 of Fig. 2 and U subframe it Than during for 1:1, it is contemplated that switching point uses two configurations as in Figure 13.
Figure 13 illustrates ratio is 1:1 two exemplary configuration of D subframe and U subframe as in the configuration #1 of Fig. 2.
The expense of the various ratios that embodiments of the present invention propose a kind of D of consideration subframe and U subframe makes from descending chain Road configures to the frame of the minimum number of the switching point of up-link.
That is, owing to being necessarily required to S subframe at switching point, so by making minimized configuration of S subframe have less opening The radio frame of pin.
Same cells performs simultaneously the UE sending and receiving occurs IDI.Therefore, in order to make interference between UE Littleization, it may be desirable to be distributed U subframe in the subframe of all configurations as homogeneously as possible.This deployment can make formation IDI's The use making FD pattern while the minimum number of UE maximizes.
When configuring new frame, the quantity of each subframe identification U subframe that eNB can configure for the frame just used, and Start to distribute U subframe from the subframe with minimal number of U subframe.In this case, can be by making used configuration move Position is distributed the quantity of the U subframe distributing to subframe.Displacement value it is contemplated that the repetition period of radio frame there is maximum ((repetition period of radio frame/Transmission Time Interval (TTI))-1).
Figure 14 is shown in legacy communications system configuration (configuration #3, the #4 of Fig. 2 only considering minimal number of switching point And #5), Figure 15 illustrates in addition to considering minimal number of switching point, by making subframe shift so that U subframe is the most fair The example frame configuration that ground is distributed and obtains.
Compared with Figure 14, in fig .15, shift value 0,3 and 5 is separately applied to configure #3, configuration #4 and configuration #5.
In fig. 14, due to subframe #3, the UE of configuration #5 is used to subject to the IDI from the UE using configuration #3 and #4. On the other hand, in fig .15, the UE of all configurations subjects to the IDI from a maximum UE.
This dispositions method has an advantage in that the quantity of the UE disturbed by minimizing, as used signature signal Method (will be described below) in equally decrease the number of times that the identifier that can distinguish between UE is performed full search.
In fig. 14, the UE using configuration #5 only can use FD pattern with another UE in subframe #3 or #4.Additionally, at figure In 15, have the advantage that the UE using configuration #5 can use with another UE in the subframe beyond subframe #0, #1, #8 and #9 FD pattern.
Additionally, the available radio-sub frame being only used for FDR system of frame configuration of Figure 16 is set up.
In this case, in order to remove S subframe, when the last subframe of previous radio frame is U subframe, only only use The configuration being made up of U subframe.
In figure 16, if the up-link of Large Volume Data (such as, multi-medium data) and downlink traffic capacity Similar, then owing to there is not S subframe, it is possible to provide maximum transmitted amount.
ENB can send the information of instruction UE particular configuration by high-level signaling to each UE.
In this case, eNB can receive the information about the business from each UE to determine UE particular configuration.
It addition, eNB can use the uplink control information (UCI) sent via PUCCH to receive about UE institute preferably Frame configuration information.If about UE the information of preferred frame configuration be added to UCI as n-bit, then can distinguish total Totally 2nPlant configuration.
From UE receive about the information of business or about the information of preferred disposition after, eNB determine whether perform with Received information-related frame configuration.When determining configuration, eNB can only with reference to the information received from UE, or when UE strong Strong requirement can always adapt to the preferably frame configuration of UE institute when uplink/downlink transmits.
Alternatively, UE can send the power level of the interference being received by based on subframe to eNB, and eNB can infer indirectly Quantity as the UE near interference effect corresponding UE.Utilizing this, eNB can change interference UE and the configuration of victim UE.At this In the case of Zhong, the interference information of each subframe can be sent by UCI.Such as, if there are two or more interference sources can depend on Indicate by 1 bit indicator according to subframe.In fig .15,10 bit altogether is needed.
Such as, if three UE that configuration #3, #4 and #5 are respectively allocated in Figure 14, then the UE of configuration #5 is used to send out Send 10 bit interference information, as shown in figure 17.
UE can send the information about business or the information about preferred disposition to eNB in each U subframe.Utilize Received information, eNB can reset frame configuration or search for the UE that can perform FD pattern most effectively.Such as, excellent when existing When selecting the UE of configuration #0 and #5 of Fig. 2, eNB may select UE to perform transmission under FD pattern.
UE can send the information about business or the information about preferred disposition in part U subframe.Such as, if excellent The portfolio of arrangement changes, then UE can send business information or preferred disposition information in part U subframe.Do not wrap receiving When including the U subframe of configuration information, eNB can not change the frame configuration of UE or it is contemplated that the frame of configuration change UE of another UE is joined Put.
Figure 18 is the flow chart illustrating the embodiments of the present invention under UE specific T DD pattern.
Although UE1 and UE2 of Figure 11 is assumed to be UE, according to the method for this embodiment in FDMA or TDMA the suitableeest For UE pair operated under FD pattern for two or more UE.
First, eNB instruction UE performs UE specific T DD pattern operation (S1801).
The available DCI sent via PDCCH performs the instruction of UE specific T DD pattern operation.
It follows that eNB sends the information about the configuration of initial UE particular frame.The configuration of initial UE particular frame can be set to make Obtain U subframe and there is with D subframe the ratio identical with the configuration #1 of Fig. 2, in order to up-link and downlink UE are effectively Operate under FD pattern.
Receive about initial UE particular frame configuration information time, UE sends PUCCH (S1805) to eNB, eNB based on PUCCH sends UE specific configuration information (S1807).In this case, the various embodiments of the present invention can be according to above-mentioned frame Collocation method is applied to UE specific configuration information.
If need not the operation of UE specific T DD, then eNB terminates UE specific T DD operation (S1809 and S1811), and if UE specific T DD to be continued executing with operates, then eNB determines whether to use the information (S1813) received by the PUCCH of UE.If Use PUCCH, then perform to send step S1805 of PUCCH, and if do not perform the configuration by PUCCH, then perform transmission Step S1807 of UE specific configuration information.
IDI (interference between the device caused by FD pattern) can occur between UE.In order to next by measuring this interference Reduce IDI, unique signature can be joined to each UE or UE component.Below, it is possible to the letter for interferometry distinguished between UE Number will be referred to as signature signal.
UE can use signature signal to know the formation signal intensity of UE of IDI, UE or signature index, the channel of such as phase place Vector and timing information.
Signature signal can be such as code sequence or perforation pattern.Signature signal can by can between UE or UE group district The various forms of signals composition divided.Available code sequence application UE is specific or the specific scrambling of UE group or intertexture.In order to just It is easily performed interferometry, only one UE or a UE group in recipient UE and can send signature signal exclusively.In this feelings Under condition, exclusive unit can be at least OFDM symbol.
Such as, if signature signal is configured by sequence and utilizes an OFDM symbol to send, then each UE is to be sent The index of sequence can be calculated by UE ID.That is, described index can be configured by the function of UE ID, or when constituting UE Can calculate by delivery (mod) computing when the amount of the information of ID is more than the index of sequence that (sequence index=(UE ID) mod is (always Index number)).
As a specific example, in order to distinguish between signature signal, available UE ID or sequence index configuration m-sequence.When When using the m-sequence as indicated by following formula used in the auxiliary synchronous signals (SSS) of LTE, N(1) IDAvailable UE ID or sequence Index calculates m ', thus distinguishes between signature.
[formula 12]
m0=m ' mod31
Signature signal is sent in all U subframes that each frame configures.On the contrary, IDI the victim UE caused is in D subframe Middle reception signature signal.It addition, part UE can receive signature signal and without sending information in U subframe.
In order to receive signature signal, eNB may utilize the configuration information of the UE forming IDI to the victim UE caused by IDI Appointment can receive the subframe of signature signal.Alternatively, eNB can be by sending extremely by the configuration index of the UE of use under FD pattern The victim UE caused by IDI is to determine the subframe of recipient UE signature signal to be received.This information can be sent out by PDCCH Send.
Figure 19 illustrates when configuration #3 and #5 of Fig. 2 is respectively allocated to two UE of Figure 14, utilizes configuration #5 to send extremely The PDCCH of 10 bits of UE.
When sending the configuration index of the UE forming interference, total floor (log configuring n can be sent2(n)) bit and shifting Floor (the log of place value ((repetition period of radio frame/TTI)-1)2((repetition period of radio frame/TTI)-1)) ratio Special.In this case, function floor (x) instruction smallest natural number less than x.
If eNB sends radio frame configurations, then UE can only be distinguished by the signature signal in part U subframe.Such as, Due to the FD pattern of eNB as in Figure 11, only two UE perform transmission/reception simultaneously, and UE1 only can configure U first for UE1 Subframe and send signature signal in the subframe of D subframe by configuring first for UE2.That is, signature send/receive timing can be based on The known configuration of eNB makes a reservation for.
In this case, eNB can use the configuration information of the UE being disturbed impact to forming the UE of interference and being subject to The UE of interference effect specifies the subframe of signature signal to be sent.
Alternatively, eNB can determine the son of signature signal to be sent by the configuration index of the UE that transmission is disturbed impact Frame.This information can be sent by PDCCH and can use 10 bit altogether when receiving subframe and being instructed to.
If if sending the configuration index of the UE being disturbed impact or send the configuration index of the UE forming interference, then Total floor (log configuring n can be sent2(n)) bit and the floor of shift value ((repetition period of radio frame/TTI)-1) (log2((repetition period of radio frame/TTI)-1)) bit.
Measured signature signal can be used for disturbing elimination by recipient UE, and or can be signed for frame configuration by eNB Name signal distribution.
Signature signal information can be fed back to eNB so that UE can be divided into formation by eNB for measuring the UE of signature signal The UE of IDI and the UE being disturbed impact.Limit to this end, eNB can perform scheduling.That is, the UE in group is limited to so that being distributed Time or frequency resource can separate as much as possible.Alternatively, can perform formed IDI UE up-link power control with The amount of regulation interference.
The UE receiving signature signal can obtain the channel information of the adjacent UE forming interference.Feedback of channel information can be given by UE ENB, eNB exploitable channel information derives the PMI of the uplink signal of the UE forming interference.That is, eNB can determine that PMI so that The impact of victim UE is minimized by the uplink signal of assailant UE, and uplink signal can be sent out well Deliver to eNB.
Figure 20 illustrates BS and UE being applicable to embodiments of the present invention.
If wireless communication system includes repeater, then between BS and repeater, perform the communication on back haul link, The communication on access link is performed between repeater and UE.Therefore, according to circumstances, BS or UE shown in Figure 20 can be by repeater generation Replace.
With reference to Figure 20, wireless communication system includes BS 2010 and UE 2020.BS 2010 includes processor 2013, storage Device 2014 and radio frequency (RF) unit 2011 and 2012.Processor 2013 can be configured to the process proposed in the execution present invention And/or method.Memorizer 2014 is connected to processor 2013 and stores all kinds relevant with the operation of processor 2013 Information.RF unit 2011 and 2012 is connected to processor 2013 and sends and/or receive radio signal.UE 2020 wraps Include processor 2023, memorizer 2024 and RF unit 2021 and 2022.Processor 2023 can be configured to perform according to this Bright proposed process and/or method.Memorizer 2024 is connected to processor 2023 and stores the operation with processor 2023 Relevant various types of information.RF unit 2012 and 2022 is connected to processor 2023 and sends and/or receive radio Signal.BS 2010 and/or UE 2020 can include individual antenna or multiple antenna.
The embodiment of the invention described above is the combination according to predetermined form of the element of the present invention and feature.Described element or Feature can be considered as selective, unless otherwise mentioned.Each element or feature can not combine with other element or feature In the case of put into practice.It addition, embodiments of the present invention can construct by subelement and/or feature being combined.The present invention Embodiment described in operation order can rearrange.Some structures of any one embodiment can be included in another In embodiment, and can be replaced by the corresponding structure of another embodiment.The most apparent , in appended claims, the clearest and the most definite claim quoted each other can be according to compound mode as the embodiment party of the present invention Formula presents, or the subsequent modification after being applied for by submission is included as new claim.In some cases, exist The specific operation being described as in the disclosure being performed by BS can be performed by the upper layer node of BS.I.e., it is obvious that by wrapping Include BS multiple network nodes constitute network in, the various operations performed to communicate with UE can be by BS or BS beyond Network node performs.Term BS can be replaced by term fixed station, node B, eNode B (eNB), access point (AP) etc..
Embodiments of the present invention can be realized by the various means of such as hardware, firmware, software or a combination thereof.Firmly In part configuration, method according to an illustrative embodiment of the invention can pass through one or more special IC (ASIC), digital signal processor (DSP), digital signal processor (DSPD), PLD (PLD), scene can Programming gate array (FPGA), processor, controller, microcontroller, microprocessor etc. realize.
In firmware or software arrangements, embodiments of the present invention can be come real according to the form of module, process, function etc. Existing.Software code can be stored in memory cell and be performed by processor.Memory cell can be located at the inside of processor Or outside, and data can be sent and from processor reception data via various any means known to processor.
Memory cell can be located at processor interiorly or exteriorly, to exchange number by various any means known with processor According to.
Have been presented for the detailed description of the preferred embodiment of the present invention so that those skilled in the art are capable of With put into practice the present invention.Although describing the present invention with reference to illustrative embodiments, it will be understood by those skilled in the art that without departing from In the case of the spirit or scope of the present invention described in appended claims, the present invention can be carried out various amendment and change Change.Therefore, the present invention should not necessarily be limited by particular implementation described herein, but should comply with and principles disclosed herein The widest range consistent with novel feature.
In the case of without departing from the spirit of the present invention and fundamental characteristics, the present invention can be according to mode set forth herein beyond Other ad hoc fashion implement.Therefore, foregoing detailed description is interpreted as being exemplary in all respects, and unrestricted Property.The scope of the present invention should be determined by the reasonable dismissal of claims, fall into claims implication and Being changed in equivalency range all will be included in wherein.The claim the most clearly quoted in appended claims can be by Present as the illustrative embodiments of the present invention according to compound mode, or the subsequent modification after being applied for by submission is as newly Claim and be included.
Industrial applicibility
The present invention can be used in the radio communication device of such as UE, repeater and eNB.

Claims (14)

1. by a method for base station BS Resources allocation in the wireless access system supporting full-duplex radio FDR transmission, should Method comprises the following steps:
Send and uplink sub-frames and downlink to the UE of configuration under user equipment (UE) specific time division multiplex tdd mode The first frame that the configuration of frame is relevant configures；
Receive from described UE the frame configuration information of business information and the instruction described UE preferred frame configuration including described UE The response message of at least one；And
The second frame regulating described uplink sub-frames with the ratio of described downlink subframe is sent based on described response message Configuration,
Wherein, by disturbing the quantity of UE to make described first frame configuration displacement based on the FDR performing ul transmissions simultaneously Set described second frame configuration.
Method the most according to claim 1, the method is further comprising the steps of: send for measuring according to FDR transmission The identification information of the interference UE of interference between device.
Method the most according to claim 2, the method is further comprising the steps of: sends to described UE and is able to receive that described The information that the subframe of the described identification information of interference UE is correlated with.
Method the most according to claim 2, wherein, uses code sequence to generate the described mark letter of described interference UE Breath.
Method the most according to claim 2, wherein, if described UE and described FDR interference UE performs data and sends simultaneously And reception, then the be configured simultaneously according to the downlink subframe of the uplink sub-frames of described UE and described FDR interference UE One timing sends the described identification information of described interference UE in the uplink sub-frames of described UE.
Method the most according to claim 1, wherein, it is considered to uplink frame is changed to the switching point of descending chain circuit frame Quantity sets described second frame configuration.
Method the most according to claim 1, wherein, the first frame configuration information has identical uplink sub-frames with descending The ratio of link subframe.
8. for a base station BS for Resources allocation, this BS in the wireless access system supporting full-duplex radio FDR transmission Including:
Radio frequency unit；And
Processor,
Wherein, described processor be configured to under user equipment (UE) specific time division multiplex tdd mode configuration UE send with The first frame configuration that uplink sub-frames is relevant with the configuration of downlink subframe,
Receive from described UE the frame configuration information of business information and the instruction described UE preferred frame configuration including described UE The response message of at least one, and
The second frame regulating described uplink sub-frames with the ratio of described downlink subframe is sent based on described response message Configuration, and
Wherein, by disturbing the quantity of UE to make described first frame configuration displacement based on the FDR performing ul transmissions simultaneously Set described second frame configuration.
BS the most according to claim 8, wherein, described processor is additionally configured to send for surveying according to FDR transmission The identification information of the interference UE of interference between amount device.
BS the most according to claim 9, wherein, described processor is additionally configured to send to described UE and be able to receive that The information that the subframe of the described identification information of described interference UE is relevant.
11. BS according to claim 9, wherein, use code sequence to generate the described identification information of described interference UE.
12. BS according to claim 9, wherein, if described UE and described FDR interference UE perform simultaneously data send and Receive, then first be configured simultaneously according to the uplink sub-frames of described UE and the downlink subframe of described FDR interference UE Timing sends the described identification information of described interference UE in the uplink sub-frames of described UE.
13. BS according to claim 8, wherein, it is considered to uplink frame is changed to the switching point of descending chain circuit frame Quantity sets described second frame configuration.
14. BS according to claim 8, wherein, the first frame configuration information has identical uplink sub-frames with descending The ratio of link subframe.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110115063A (en) * 2017-01-05 2019-08-09 华为技术有限公司 Network equipment and method for switching
CN112075122A (en) * 2018-05-03 2020-12-11 交互数字专利控股公司 Channel access scheme for Wireless Local Area Networks (WLANs) with full duplex radios

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9748990B2 (en) 2015-02-09 2017-08-29 Huawei Technologies Co., Ltd. System and method for training signals for full-duplex communications systems
US20160233904A1 (en) * 2015-02-09 2016-08-11 Huawei Technologies Co., Ltd. System and Method for Full-Duplex Operation in a Wireless Communications System
US10412749B2 (en) * 2015-05-21 2019-09-10 Telefonaktiebolaget Lm Ericsson (Publ) Scheduling in license assisted access
US10306562B2 (en) * 2015-10-29 2019-05-28 Qualcomm Incorporated Transport format combination selection during self-jamming interference
US10547435B2 (en) * 2016-03-14 2020-01-28 Industrial Technology Research Institute Configuration and measurement method for performing a full-duplex communication and base station using the same
CN108781438B (en) 2016-04-15 2020-11-24 Oppo广东移动通信有限公司 Method and apparatus for wireless communication
WO2018058455A1 (en) * 2016-09-29 2018-04-05 Panasonic Intellectual Property Corporation Of America User equipment, base station and wireless communication method
US10779276B2 (en) 2018-03-30 2020-09-15 Apple Inc. Self-contained slot and slot duration configuration in NR systems
KR102113709B1 (en) * 2018-05-23 2020-05-21 주식회사 맨컴 control panel module box including a degassing unit for removing harmful gas

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1227602A1 (en) * 2001-01-24 2002-07-31 Lucent Technologies Inc. Method for dynamic allocation of timeslots in a TDD communication system
CN101159485A (en) * 2007-10-28 2008-04-09 中兴通讯股份有限公司 TDD system signal transmission method and frame structure
US20090135748A1 (en) * 2007-11-16 2009-05-28 Bengt Lindoff Adaptive Scheduling for Half-Duplex Wireless Terminals
CN102415014A (en) * 2009-04-28 2012-04-11 中兴通讯(美国)公司 Method and system for dynamic adjustment of downlink/uplink allocation ratio in lte/tdd systems
CN102893697A (en) * 2010-05-26 2013-01-23 索尼公司 Base station, wireless communication method, user equipment, and wireless communication system

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007049450A (en) * 2005-08-10 2007-02-22 Hitachi Kokusai Electric Inc Variable tdd control method
GB2418806B (en) * 2005-08-19 2006-09-27 Ipwireless Inc Duplex operation in a cellular communication system
US8483036B2 (en) * 2006-02-24 2013-07-09 Lg Electronics Inc. Method of searching code sequence in mobile communication system
US8009639B2 (en) * 2006-12-27 2011-08-30 Wireless Technology Solutions Llc Feedback control in an FDD TDD-CDMA system
ES2623231T3 (en) * 2007-08-08 2017-07-10 Godo Kaisha Ip Bridge 1 Device and method of communication
EP2203015A1 (en) * 2008-12-23 2010-06-30 Nokia Siemens Networks OY Method for generating cooperation areas in communications networks and corresponding network nodes
EP2742748A4 (en) * 2011-08-12 2015-08-26 Intel Corp System and method of uplink power control in a wireless communication system
US9137788B2 (en) 2011-09-05 2015-09-15 Nec Laboratories America, Inc. Multiple-input multiple-output wireless communications with full duplex radios
KR101920496B1 (en) * 2011-11-25 2018-11-21 애플 인크. Method and Apparatus for Transmitting and Receiving User Equipment's Transmission Mode Information in Inter-Band Time Division Duplex Mode
CN103188797A (en) * 2011-12-28 2013-07-03 北京三星通信技术研究有限公司 Method for changing up and down TDD configuration
CN103220723B (en) * 2012-01-18 2016-08-10 华为技术有限公司 Wireless communications method and device
GB2498561A (en) * 2012-01-20 2013-07-24 Renesas Mobile Corp Allocating part of the frequency domain for full duplex communication and part for half duplex communication between a Node B and UEs
US9215039B2 (en) * 2012-03-22 2015-12-15 Sharp Laboratories Of America, Inc. Devices for enabling half-duplex communication
WO2014017498A1 (en) * 2012-07-27 2014-01-30 京セラ株式会社 Mobile communication system
EP2802091A1 (en) * 2013-05-08 2014-11-12 Panasonic Intellectual Property Corporation of America Flexible TDD uplink-downlink configuration with flexible subframes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1227602A1 (en) * 2001-01-24 2002-07-31 Lucent Technologies Inc. Method for dynamic allocation of timeslots in a TDD communication system
CN101159485A (en) * 2007-10-28 2008-04-09 中兴通讯股份有限公司 TDD system signal transmission method and frame structure
US20090135748A1 (en) * 2007-11-16 2009-05-28 Bengt Lindoff Adaptive Scheduling for Half-Duplex Wireless Terminals
CN102415014A (en) * 2009-04-28 2012-04-11 中兴通讯(美国)公司 Method and system for dynamic adjustment of downlink/uplink allocation ratio in lte/tdd systems
CN102893697A (en) * 2010-05-26 2013-01-23 索尼公司 Base station, wireless communication method, user equipment, and wireless communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110115063A (en) * 2017-01-05 2019-08-09 华为技术有限公司 Network equipment and method for switching
CN112075122A (en) * 2018-05-03 2020-12-11 交互数字专利控股公司 Channel access scheme for Wireless Local Area Networks (WLANs) with full duplex radios
CN112075122B (en) * 2018-05-03 2024-02-23 交互数字专利控股公司 Channel access scheme for Wireless Local Area Network (WLAN) with full duplex radio

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